Home / 28,130.11-42,204.41-11,504.13

Finding the Fourth Proportional to 28,130.11, 42,204.41 and 11,504.13

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Solution

The fourth proportional to 28,130.11, 42,204.41 and 11,504.13 is: 17,259.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,130.11 : 42,204.41 = 11,504.13 : x
  2. Step 2: Convert to fraction form
    28,130.11/42,204.41 = 11,504.13/x
  3. Step 3: Cross multiply
    28,130.11x = 42,204.41 × 11,504.13
  4. Step 4: Simplify right side
    28,130.11x = 485,525,019.21
  5. Step 5: Solve for x
    x = 485,525,019.21/28,130.11
  6. Step 6: Final answer
    x = 17,259.98

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.